shell指令

最新推荐文章于 2025-07-26 11:55:39 发布

原创最新推荐文章于 2025-07-26 11:55:39 发布 · 146 阅读

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#数据库

work1

`mkdir ~/dir`
`mkdir ~/dir/dir1`
`mkdir ~/dir/dir2`
`cp * ~/dir/dir1/`
`cp *.sh ~/dir/dir2/`
`tar -cvJf dir2.tar.xz /home/hq/dir/ dir2`
`mv dir2.tar.xz ~/dir/dir1/`
`tar -xvf ~/dir/dir1/dir2.tar.xz -C ~/dir/dir1/`


work2

`head -5 /etc/group | tail -1`
`sudo mkdir /home/ubuntu/copy`
`cd /home/ubuntu/copy`
`sudo cp /etc/shadow test`
`sudo chown root test`
`chmod  000 test`
arr=www.hqyj.com
expr substr "$arr" 1 3
expr substr "$arr" 5 4
expr substr "$arr" 10 3
echo " ${#arr[*]}"